Search the archives for zoom and you will find plenty of answers on this
question.
RSiteSearch("zoom")
Tom
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Henrik Andersson
> Sent: Tuesday, 26 July 2005 4:16 PM
> To: [email protected]
> Subject: [R] Plot zooming i.e. changing ylim according to xlim
>
>
> Dear R-gurus,
>
> I would like to zoom in a plot, e.g. I select a region on the
> x-axis and
> then I would like the ranges on the y-axis to change accordingly.
>
> Is it possible to do this with existing functions, or do I have to
> invent some data selection before plotting?
>
> See below a short example, where I select ylim with trial and error,
> which I want to avoid.
>
> Cheers, Henrik Andersson
> --------------------------------------------------------------------
> ## Example -- in reality more numbers, no function
> x <- seq(0,20)
> y <- exp(-x)
>
> plot(y~x,type='l')
>
> ## Zoom in the end, to see what's happenning
>
> plot(y~x,type='l',xlim=c(19,20))
>
> ## Try other ylim
>
> plot(y~x,type='l',xlim=c(19,20),ylim=c(0,1))
>
> ## Not enough
>
> plot(y~x,type='l',xlim=c(19,20),ylim=c(0,1E-8))
>
> ## Better
> ---------------------------------------------
> Henrik Andersson
> Netherlands Institute of Ecology -
> Centre for Estuarine and Marine Ecology
> P.O. Box 140
> 4400 AC Yerseke
> Phone: +31 113 577473
> [EMAIL PROTECTED]
> http://www.nioo.knaw.nl/ppages/handersson
>
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